Did you replace all those parts they list as "New"--seals & gaskets, in they service manual when you changed your fork oil. Do you need that special wrench they show you need to take apart the head bearing?

I don't replace any seals on an "oil change". An adjustable spanner wrench should work on the steering head nut. (Or a channel locks or punch and hammer are some other crude tool.)

__________________"Democracy is two wolves and a lamb voting on what to have for lunch.Liberty is a well-armed lamb contesting the vote" Ben FranklinCurrent bikes F800GS-EXCF350-Versys-690R-RZ350